Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
dt.intermarche.com/tags.js	3600.0 s	42.3 KiB
/e2cf31bf-f047-457e-a30d-eb9c482e5e46/loader.js?target_ty...	7200.0 s	33.7 KiB
cdn.intermarche.com/images/services-en-ligne.webp	3600.0 s	15.2 KiB
www.mousquetaires.com/wp-content/uploads/2025/07/enseigne-intermarche_petit.png	0.0 ms	4.5 KiB
www.intermarche.com/illustrations/loyalty-card.png	1209600.0 s	36.8 KiB
try.abtasty.com/4ec90b365fc67dc7dc08077e3e26291d.js	30.0 s	3.5 KiB
www.intermarche.com/images/logo-app.png	1209600.0 s	3.7 KiB
www.intermarche.com/images/logo-republique-francaise.png	1209600.0 s	2.5 KiB
www.intermarche.com/images/carte-de-fidelite-Intermarche-sm.webp	1209600.0 s	2.4 KiB
www.intermarche.com/images/logoIntermarche.svg	1209600.0 s	2.4 KiB
www.intermarche.com/icons/magasin.svg	1209600.0 s	1.8 KiB
www.intermarche.com/icons/help-center.svg	1209600.0 s	1.7 KiB
www.intermarche.com/icons/prospectus.svg	1209600.0 s	938 B
www.intermarche.com/icons/panier.svg	1209600.0 s	912 B
www.intermarche.com/icons/promotion-1.svg	1209600.0 s	773 B
www.intermarche.com/icons/account.svg	1209600.0 s	568 B
www.intermarche.com/icons/chevron-left.svg	1209600.0 s	299 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:58.694 source:map[type:text value:[unattributed]]]]

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-DIV

nodeLabel: div.ml-[max(calc(50%_-_192px),_24px)] > div.mr-[max(calc(50%_-_192px),_24px)] > button.relative > div.absolute

path: 1,HTML,1,BODY,6,DIV,2,MAIN,0,DIV,0,DIV,0,DIV,0,BUTTON,0,DIV

selector: div.ml-[max(calc(50%_-_192px),_24px)] > div.mr-[max(calc(50%_-_192px),_24px)] > button.relative > div.absolute

snippet: <div class="absolute inset-0 bg-center bg-no-repeat [background-image:var(--bg-image-m…" style="--bg-image-mobile: url(//images.ctfassets.net/26cqtpvnd0cd/5bQIjiuOp6xuKw93…;">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
div.ml-[max(calc(50%_-_192px),_24px)] > div.mr-[max(calc(50%_-_192px),_24px)] > button.relative > div.absolute `div.ml-[max(calc(50%_-_192px),_24px)] > div.mr-[max(calc(50%_-_192px),_24px)] > button.relative > div.absolute`	/26cqtpvnd0cd/38klw1mJldm7x2mLyc2cq7/432d1a4dc85c40828e78...	80.6 KiB	39.9 KiB
carte de fidélité `div.relative > div.grid > div.relative > img.object-contain`	www.intermarche.com/illustrations/loyalty-card.png	36.7 KiB	36.5 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 839 ms

URL	Time Spent
intermarche.com/	839 ms
www.intermarche.com/	0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.0 s 521.5 KiB

URL	Transfer Size	Est Savings
/web/assets/99-0-3-0/_next/static/chunks/143-0c71e766e847...	82.0 KiB	81.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-KJSCTC6	182.9 KiB	78.2 KiB
/web/assets/99-0-3-0/_next/static/chunks/aaea2bcf-8844428...	84.4 KiB	59.7 KiB
www.intermarche.com/fpm/ssmtg/?id=GTM-WLP6T4B	172.4 KiB	59.0 KiB
/sdk/fdad10f6ad3ebf4d2fe8a93e9576ccf0eb0a78c3/modern/sdk....	101.8 KiB	43.8 KiB
try.abtasty.com/4ec90b365fc67dc7dc08077e3e26291d/main.1d09d83601b989476cee.js	77.6 KiB	39.2 KiB
/web/assets/99-0-3-0/_next/static/chunks/8634.b9efcd202b2...	36.3 KiB	34.0 KiB
/web/assets/99-0-3-0/_next/static/chunks/1269-bc171d9ae41...	34.5 KiB	29.0 KiB
/web/assets/99-0-3-0/_next/static/chunks/2351-a9b9ad76e9e...	29.7 KiB	27.7 KiB
/web/assets/99-0-3-0/_next/static/chunks/7649-a1866758a39...	34.6 KiB	24.6 KiB
/web/assets/99-0-3-0/_next/static/chunks/996-1d49e69a7615...	27.6 KiB	24.6 KiB
/web/assets/99-0-3-0/_next/static/chunks/9781-0e34f5d6343...	30.5 KiB	20.3 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
/web/assets/99-0-3-0/_next/static/chunks/143-0c71e766e847...	1.3 s	1.2 s	52 ms
www.intermarche.com/	881 ms	36 ms	81 ms
Unattributable	866 ms	168 ms	0.0 ms
/web/assets/99-0-3-0/_next/static/chunks/1255-e1788e884ed...	711 ms	649 ms	15 ms
www.intermarche.com/fpm/ssmtg/?id=GTM-WLP6T4B	606 ms	511 ms	52 ms
www.googletagmanager.com/gtm.js?id=GTM-KJSCTC6	376 ms	325 ms	46 ms
/sdk/fdad10f6ad3ebf4d2fe8a93e9576ccf0eb0a78c3/modern/sdk....	267 ms	219 ms	48 ms
try.abtasty.com/4ec90b365fc67dc7dc08077e3e26291d/main.1d09d83601b989476cee.js	214 ms	189 ms	18 ms
dt.intermarche.com/tags.js	194 ms	165 ms	7.8 ms
/web/assets/99-0-3-0/_next/static/chunks/main-app-1f61836...	176 ms	175 ms	0.2 ms
/sdk/fdad10f6ad3ebf4d2fe8a93e9576ccf0eb0a78c3/modern/ui-w...	130 ms	72 ms	18 ms
/web/assets/99-0-3-0/_next/static/chunks/4bd1b696-182b6b1...	124 ms	85 ms	29 ms
try.abtasty.com/shared/analytics.19734d4a8b4f51cfc486.js	59 ms	20 ms	1.6 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	4.0 s
Other	999 ms
Script Parsing & Compilation	649 ms
Style & Layout	428 ms
Rendering	144 ms
Garbage Collection	122 ms
Parse HTML & CSS	70 ms

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.3 KiB

URL	Transfer Size	Est Savings
	16.8 KiB	14.3 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
www.googletagmanager.com/gtm.js?id=GTM-KJSCTC6	183.2 KiB
www.intermarche.com/fpm/ssmtg.js	172.7 KiB
/gtm.js?id=GTM-WLP6T4B&fps=fc&mpath=%2Ffpm%2Fssmtg%2F&gtm...	172.6 KiB
/26cqtpvnd0cd/4bKWWOTqtORXxB0JKklqup/e2e4555c5ce12f174383...	105.1 KiB
/sdk/fdad10f6ad3ebf4d2fe8a93e9576ccf0eb0a78c3/modern/sdk....	102.2 KiB
/web/assets/99-0-3-0/_next/static/chunks/aaea2bcf-8844428...	84.4 KiB
/web/assets/99-0-3-0/_next/static/chunks/143-0c71e766e847...	82.3 KiB
/26cqtpvnd0cd/38klw1mJldm7x2mLyc2cq7/432d1a4dc85c40828e78...	81.0 KiB
try.abtasty.com/4ec90b365fc67dc7dc08077e3e26291d/main.1d09d83601b989476cee.js	78.2 KiB
cdn.intermarche.com/trad/fr/99-0-3-0/common.json	59.2 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
carte de fidélité `div.relative > div.grid > div.relative > img.object-contain`	www.intermarche.com/illustrations/loyalty-card.png
Logo `div.didomi-popup-container > div.didomi-popup-view > div.didomi-popup-notice-logo-container > img.didomi-popup-notice-logo`	www.mousquetaires.com/wp-content/uploads/2019/01/intermarche_349X66.png
Les Mousquetaires - image contribuée `ul.grid > li.min-w-0 > picture.max-h-72 > img.max-h-72`	/26cqtpvnd0cd/5LHSfD1luMk2aIGMy4O48O/72c92aea19b536053276...
Liberté, égalité, fraternité - République Française `div#root-app > footer#app__footer > section.flex > img.max-h-fit`	www.intermarche.com/images/logo-republique-francaise.png
Intermarché (retour à l’accueil) - image contribuée `ul.grid > li.min-w-0 > picture.max-h-72 > img.max-h-72`	/26cqtpvnd0cd/NyecMADUMS8OQSo2Seuwi/bf0b2e0a8192e9db881f3...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 3 user timings

●Avoid long main-thread tasks 15 long tasks found

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 20 ms

●Server Backend Latencies 110 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 40 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
body.didomi-popup-open > div#root-app > main#app__main > div.fixed `body.didomi-popup-open > div#root-app > main#app__main > div.fixed`

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●`button`, `link`, and `menuitem` elements have accessible names

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●`[lang]` attributes have a valid value

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●All heading elements contain content.

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○Image elements do not have `[alt]` attributes that are redundant text.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.	/web/assets/99-0-3-0/_next/static/chunks/3958-13634300286...

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
www.intermarche.com/fpm/ssmtg/?id=GTM-WLP6T4B
/web/assets/99-0-3-0/_next/static/chunks/143-0c71e766e847...

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`